Improvement in pinking-machines



(380 THQMAS; HAGERTY Improvement in Pinki'ng Machines.

N0. 122,008. Patented Dec.19,1871.

mmussumgm UNITED STATES PATENT OEEIOE.

THOMAS HAGEETY, OE RICHMOND, viaggi@ r IMPROVEMENT IN PINKING-MACHINES.

Specification forming part of Letters Patent No. 122,008, dated December19, 1871.

To all whom it may concern:

Be it known that I, THOMAS HAGERTY, of Richmond, in the county ofHenrico and State of Virginia, have invented certain Improvements inPinking-Machines and I declare the following to be a full, clear, andexact description thereof, reference being had to the accompanyingdrawing, in which- Figure 1 is a perspective view, and Fig. 2 is afront` elevation, the anvil and a portion of its journal having beenremoved. 4

Similar letters of reference indicate the same parts.

` This invention relates to that class of pinkin g instruments in whichthe cloth is fed through between two revolving wheels, one of whichoperates as an anvil, and the other as a cutter; and the object of theinvention is to improve the construction of such machines in thefollowing particulars, viz.: rst, to prevent any accidental eccentricityof the wheelsv from interfering with their proper action upon the cloth;secondly', to enable the wheels to be thrown into or out of gear morequickly than heretofore; thirdly, to improve the construction of theframe so as to `make it lighter, cheaper, and better adapted to theproper support of the cloth; fourthly, to make a sharper and bettercutting-wheel; and, fthly, to reduce the cost of the cutting-wheel, soas to bring the machine within the means of ordinary users. To this endthe invention consists, irst, in the construction of the frame;secondly, in the combination of the operating parts; thirdly, in thecutting-wheel made by my improved process; and, fourthly, in saidprocess; all as hereinafter described.

,In the drawing, A is the frame, cast in one piece, consisting of thehorizontal cloth-table a, having a feed opening nearly at its center; ahorizontal clamping-bracket, al, which also serves as a rest for thespring; an elongated horizontal socket, a2, to support the shaft of thecuttingwheel; a half-socket, a?, to hold the shaft ofthe anvil; twocurved arms, a4 a4, in the form of a quarter-circle, connecting thesocket a2 to the feed-table; and two semicircular arms, a5 a5,connecting the bracket al and the half-socket a to the feed-table; allarranged as shown. The clamping-bracket is cast open at the rear end,and a space is left between the lower ends of the arms a5 a5 to savemetal; render the frame lighter; enable the journal of the anvil to bereadily inserted and removed; and allow the anvil to be depressed to agreater extent than it could be were said parts cast solid. A space isalso left between the half-socket a3 and the socket c2 to save material,diminish the weight of the machine, and render the whole more ornamentalin appearance. B is the anvil, which may be made of any suitablematerial. It is supported upon a journal, b, the upper side of which isheld in the half-socket a3 by a bent spring, O, as shown in Fig. 2, thejournal being provided with an enlarged head, which shoulders againstthe rear side of the frame, and also with a pin or nut which secures theanvil upon it. The anvil projects up into the feed opening, asrepresented, so as to come in contact with the cutting-wheel D. Thecutting-wheel is secured-upon its shaft in any suitable manner, so thatit can be readily removed and another attached in its place, and it isrotated by a crank, E, fixed directly to its shaft. The spring C, by itspeculiar form, remains in place without any fastening, a liange, c,being constructed upon its lower extremity, which bears against the edgeof the bracket a1 and prevents it from working endwise. Aneccentric-headed lever, F, is employed for the purpose ofinstantaneously throwing the wheels B D into or out of gear, and oflooking them out of gear, the lever being so constructed that when itshandle is depressed it locks the end of the spring down, leaving theanvil to drop by its own weight as far as the spring is depressed; andGr is a clamping-screw, by which the machine is secured to thework-table, the edge of the latter coming between the parts al al, sothat the feedtable a rests upon the work-table, their surfaces beingnearly on a level, and no difficulty is eX- perienced in holding thecloth upon it or feeding it properly over it in either direction. Thecutter D is constructed from a thin plate of steel in the followingmanner. The blanks are tirst properly cut out and punched, either byhand or machinery, and they are then ground, iiled, or milled to a sharpedge all around their periphery, after which they are subjected to theaction of a die or a series of dies, successively, until they areradially corrugated and their edges curved or corrugated between thelarger corrugations, if desired, in any pattern suitable for suchcutters. They should be brought to a cherry red before being submittedto the action of the dies, and care should be taken to construct thedies in such manner that they will not come in contact with the eXtremeedge ofthe cutters and thereby dull or break them. The heated'steel edgeof the cutmanufactured, while the edge is sharper and morev uniform thanit is possible to get by any process of iling after the metal has beenbent.

One great advantage secured by the construe tion of my improved machinearises from the fact that the cutter and anvil need 11o adjustment, thespring holding them together' with a yielding pressure, which enablesthe operator to feed the heaviest or the lightest goods to the machinewithout stopping to adjust any of the parts. Another advantage resultingfrom the same cause is that the edge of the cutter is always held incontact with the anvil, however eccentrically they may happen to behung, and however the edge of either may have worn away by use. The easewith which the several parts constituting the machine can be puttogether, or, when necessary, taken apart, is apparent.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

l. In a pinking-machine, a frame having a slotted feed-table adapted torest directly on the surface of the Work-table and form a clamping jaw,substantially as described.

2. In a pinking-machine, the combination of a circular revolvingcutting-blade, D, with a circular revolving anvil, B, and a spring, C,that holds them together with a yielding pressure, substantially asdescribed for the purposes specilied.

3. The combination of the revolving cuttingblade D, anvil B, and springC with the eccentric-headed lever F, a frame for supporting said parts,and a crank for operating the wheels, substantially as described for thepurposes specified.

4. As an improved article of manufacture, the pinkin g cutter-blade D,made by the process here-v in described.

5. The process of manufacturing the blades D, substantially asdescribed.

THOMAS HAGERTY.

W. L. SAvoY. (38)

